Consolidated Balance Sheets (Parentheticals) - USD ($)	Dec. 31, 2016	Dec. 31, 2015
Successor [Member]
Accumulated depreciation, vessels	$ 76,463,743	$ 49,148,080
Accumulated amortization, other fixed assets	$ 307,880	$ 159,827
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	25,000,000	25,000,000
Preferred stock, shares issued (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	700,000,000	700,000,000
Common stock, issued (in shares)	48,106,827	1,883,303
Common stock, outstanding (in shares)	48,106,827	1,883,303